CN106731435A - A kind of angle-style ultra-fine grain coalescence case - Google Patents

A kind of angle-style ultra-fine grain coalescence case Download PDF

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Publication number
CN106731435A
CN106731435A CN201611225096.7A CN201611225096A CN106731435A CN 106731435 A CN106731435 A CN 106731435A CN 201611225096 A CN201611225096 A CN 201611225096A CN 106731435 A CN106731435 A CN 106731435A
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CN
China
Prior art keywords
coalescence
horizontal stripe
case
area
ash bucket
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Pending
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CN201611225096.7A
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Chinese (zh)
Inventor
金建祥
罗娜
孙浩
蔡月
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Yangcheng Institute of Technology
Yancheng Institute of Technology
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Yangcheng Institute of Technology
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Priority to CN201611225096.7A priority Critical patent/CN106731435A/en
Publication of CN106731435A publication Critical patent/CN106731435A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D51/00Auxiliary pretreatment of gases or vapours to be cleaned
    • B01D51/02Amassing the particles, e.g. by flocculation
    • B01D51/04Amassing the particles, e.g. by flocculation by seeding, e.g. by adding particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electrostatic Separation (AREA)
  • Treating Waste Gases (AREA)

Abstract

A kind of angle-style ultra-fine grain coalescence case, whole coalescence case is adapted to mount between electricity-bag dust collector in box;Coalescence case is made up of air inlet, gas outlet, coalescence area and ash bucket;Air inlet is the passage after electric cleaner, and flue gas is by electric cleaner;2 ~ 4 groups of horizontal stripes are provided with coalescence area, horizontal stripe is horizontally placed in coalescence area, the section configuration of horizontal stripe is angular;Gas outlet is located at coalescence area bottom, and ash bucket top is arranged to flow channels, is processed into sack cleaner through the flue gas after coalescence.The present invention is with strong points, adapt to wide, constitution optimization, good reliability.

Description

A kind of angle-style ultra-fine grain coalescence case
Technical field
The invention belongs to flue gas ash removal process field, it is related to a kind of angle-style ultra-fine grain coalescence case.
Background technology
In recent years, China big and medium-sized cities haze weather is more and more, has had a strong impact on working healthily and the life of city dweller It is living, wherein PM in urban environment2.5(predominantly PM0.4-1.0) too high levels are to cause the main cause of haze weather.Therefore, such as What control PM2.5Produce, and reduce its presence, as problem demanding prompt solution.
Chinese patent CN101664623A discloses the ultrafine particle deduster for being related to administer for industrial fumes.Specifically Improved by the electric-bag complex dust collector to existing cascade filtration mode, in the outlet and the import of air-introduced machine of filter bag dedusting mechanism Between be provided with turbulent eddy mechanism, the turbulent eddy mechanism include turbulent eddy room, flue dust inlet tube and flue dust outlet.Turbulent flow Vortex chamber is down the bucket-shaped of isosceles trapezoid for cross section, and its bottom is connected to grey small room.By second level treatment containing thinner The flue dust of particulate matter enters flue dust inlet tube, by wind deflector, deflects down air-flow, into turbulent eddy room, more carefully Particulate matter produces diffusion and collision to promote minuteness particle to precipitate with turbulent eddy chamber interior walls, fine particle is separated from flue dust Out.But the materialization coalescence of fine particle is individually carried out in the handling process with turbulent eddy room, coalescence efficiency is not high.
Chinese patent CN 102423599 A disclose a kind of integration removing industrial discharged superfine and trace contaminant Electric bag composite purification device and purification method.Device, electrostatic precipitation is preliminarily sprayed using adsorbent is disposed with along airflow direction The structure type of device, ultra-fine grain coalescence device, adsorbent jetting device and bag-type dust collector, there is provided a kind of structure is tight Gather, operating cost is low, maintenance and operation maintenance are convenient, efficient removal is ultra-fine and micro while constant dust pollution thing is removed The integration electricity bag composite purification device and purification method of pollutant.Ultra-fine grain coalescence device is by groups such as positive high voltage sparking electrodes Into.Ultra-fine grain coalescence device is not constructed specifically, and good coalescence condition is not formed in addition to charged.Chinese patent CN 103007670 A control fine particle, cooperate with the electric-bag complex dust collector of demercuration, are related to industrial dust collector.Electric bag composite dedusting Device is provided with electric bag transition region, and electric bag transition region is located between electric field region and bag-type dusting area;Ash bucket is located at the bottom of housing, net gas Room connects located at air-purifying chamber top and with air-purifying chamber located at bag-type dusting area top, exhaust pass;Adsorbent jetting device and suction Attached agent container is located at the top of electric bag transition region, and the discharging opening of absorbent container is connected with the charging aperture of adsorbent jetting device. Absorbent can be made to be sufficiently mixed with flue gas, absorbent is more evenly distributed, absorbent demercuration effect is more preferable.Electric bag transition region is provided with At least 2 groups positive plates and discharge electrode, positive plate and discharge electrode constitute electric field channel.
Process above equipment, method is complicated, control runs difficult, equipment investment and operating cost is high.
Thus, for coalescence is inefficient, complex process equipment the problems such as, it is necessary on the basis of existing technology, The ultra-fine grain coalescence case of research and development reinforcing coalescence.On the basis of traditional deduster, coalescence processing unit is set up, make to surpass Fine particle, into larger particles, is existing so as to smoothly be removed in follow-up deduster by physical method or physical chemistry method coalescence In the trend of dedusting technology development.
The content of the invention
Goal of the invention:The invention aims to solve the deficiencies in the prior art, a kind of with strong points, adaptive surface is proposed Extensively, constitution optimization, the ultra-fine grain coalescence case of the reinforcing coalescence of good reliability.
Technical scheme:In order to realize the purpose of the present invention, the present invention is adopted the following technical scheme that.
A kind of angle-style ultra-fine grain coalescence case, whole coalescence case is adapted to mount between electricity-bag dust collector in box;It is solidifying And case is made up of air inlet, gas outlet, coalescence area and ash bucket;Air inlet is the passage after electric cleaner, and flue gas is by electric precipitation Device;2 ~ 4 groups of horizontal stripes are provided with coalescence area, horizontal stripe is horizontally placed in coalescence area, the section configuration of horizontal stripe is angular;Gas outlet Positioned at coalescence area bottom, ash bucket top is arranged to flow channels, through the flue gas after coalescence at sack cleaner Reason;Ash bucket is arranged at coalescence area lower section, and other ash buckets with electricity-bag dust collector are concordant.
The every group of horizontal stripe set in coalescence area is arranged above and below, and the angular opening angle of horizontal stripe is 70 ~ 120 degree;The height of horizontal stripe It is 10 ~ 25cm to spend;Spacing between adjacent two horizontal stripes takes 1.0 ~ 2.0 times of horizontal stripe height;Between between two adjacent groups horizontal stripe Away from taking 1.0 ~ 2.0 times of horizontal stripe section length, shifted to install between two adjacent groups horizontal stripe.
Coalescence case operation principle:By the flue gas of electric cleaner treatment subsequently into coalescence area, at this moment with ultra-fine in flue gas Particulate matter is in the majority, and lower collision cohesion is acted on by " turbulent flow coalescence ", and ultra-fine grain becomes bulky grain, as particle coarsening;Connect And enter into follow-up inside of bag type dust collector, the particle of coarsening is easy to deduster to gather dust, and so just reduces ultra-fine grain Discharge.
" turbulent flow coalescence " refers to the change that flue gas stream is caused by special construction, forms the state close to turbulent flow.It is solidifying And major influence factors be granular size, particle cohesion performance and collision probability.Turbulent flow considerably increases particle in flue gas Collision probability.Due to the special tectonic of coalescence case so that air-flow intersection of coalescence Xiang Nei branches is mainly sent out as turbulent flow coalescence Raw region, by turbulent flow coalescence, enhances overall coalescence effect.
Beneficial effect:The device that the present invention is provided is compared with advantages below with existing apparatus.
(1)By special tectonic provided by the present invention, various coalescence synergies improve coalescence efficiency, PM2.5Account for , compared with declining 40% ~ 60% before coalescence, mass concentration is compared with decline 5 ~ 15% before coalescence for the number concentration of particle in flue dust.
(2)Coalescence case provided by the present invention substantially reduces PM2.5Discharge.It is of the invention main by sack cleaner It is preceding that coalescence is carried out to superfine particulate matter, enable to be removed in the presence of sack cleaner, the device that the present invention is provided Removal efficiency of the electricity-bag dust collector to superfine particulate matter can be improved, the discharge of ultra-fine flue dust is reduced.Can be removed in equal Under conditions of the working condition and collection mode of dirt device, PM in flue dust2.5Clearance improves 40% ~ 60%.
(3)The each several part of coalescence case provided by the present invention, rationally, function is compatible to be matched subregion.
(4)Coalescence case provided by the present invention creates condition for the volume reduction of electricity-bag dust collector.
(5)Coalescence case provided by the present invention reduces investment, simplifies operation, and drag losses is small, pressure reduction, reduces Energy consumption, operating cost is low.
(6)Coalescence case provided by the present invention is easy for installation, adapts to wide, is suitable to locate in advance before various sack cleaners Reason, also improves adaptability of the electricity-bag dust collector to various different industrial fumes.
(7)Coalescence case provided by the present invention provides new thinking for the transformation of electric cleaner.
Brief description of the drawings
A kind of angle-style ultra-fine grain coalescence box structure schematic diagram that Fig. 1 is provided for the present invention.
Fig. 2 is ultra-fine grain coalescence principle schematic in the present invention.
In Fig. 1, in 2:1:Electric cleaner, 2:Sack cleaner, 3:Coalescence case, 4:Air inlet, 5:Coalescence area, 6:Go out Gas port, 7:Ash bucket, 8:Horizontal stripe, 9:Particle before coalescence, 10:Big particle, A are tied after coalescence:The main generating region of turbulent flow coalescence Domain.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated.
Embodiment 1
Certain industrial fumes waste gas, treating capacity is 80000m3The coalescence case that/h is provided using the present invention.Whole coalescence case in box, It is adapted to mount between electricity-bag dust collector;Coalescence case is made up of air inlet, gas outlet, coalescence area and ash bucket;Air inlet is electricity Passage after deduster, flue gas is by electric cleaner;4 groups of horizontal stripes are provided with coalescence area, horizontal stripe is horizontally placed in coalescence area, The section configuration of horizontal stripe is angular;Gas outlet is located at coalescence area bottom, and ash bucket top is arranged to flow channels, after coalescence Flue gas processed into sack cleaner;Ash bucket is arranged at coalescence area lower section, and other ash buckets with electricity-bag dust collector are put down Together.
Every group of the horizontal stripe set in coalescence area is arranged above and below, and the angular opening angle of horizontal stripe is 90 degree;The height of horizontal stripe is 15cm;Spacing between adjacent two horizontal stripes takes 1.5 times of horizontal stripe height;Spacing between two adjacent groups horizontal stripe takes horizontal stripe section 1.5 times of length, two adjacent groups horizontal stripe is shifted to install.In fig. 2, A is the region that turbulent flow coalescence mainly occurs.
The coalescence case provided using the present invention, carries out reinforcing coalescence, is followed by sack cleaner, the whole total efficiency of dust collection of technique More than 99.98%, dust contained flue gas concentration of emission is less than 30mg/Nm3, PM2.5Clearance improves 60%.

Claims (2)

1. a kind of angle-style ultra-fine grain coalescence case, it is characterised in that:Whole coalescence case is adapted to mount to electricity-bag dedusting in box Between device;Described coalescence case is made up of air inlet, gas outlet, coalescence area and ash bucket;Described air inlet be electric cleaner it Passage afterwards, flue gas is by electric cleaner;2 ~ 4 groups of horizontal stripes are provided with described coalescence area, horizontal stripe is horizontally placed in coalescence area, The section configuration of horizontal stripe is angular;Described gas outlet is located at coalescence area bottom, and ash bucket top is arranged to flow channels, through solidifying And flue gas afterwards is processed into sack cleaner;Described ash bucket is arranged at coalescence area lower section, with electricity-bag dust collector Other ash buckets it is concordant.
2. coalescence case as claimed in claim 1, the every group of horizontal stripe set in coalescence area is arranged above and below, the angular angular aperture of horizontal stripe Spend is 70 ~ 120 degree;The height of horizontal stripe is 10 ~ 25cm;Spacing between adjacent two horizontal stripes takes 1.0 ~ 2.0 times of horizontal stripe height; Spacing between two adjacent groups horizontal stripe takes 1.0 ~ 2.0 times of horizontal stripe section length, is shifted to install between two adjacent groups horizontal stripe.
CN201611225096.7A 2016-12-27 2016-12-27 A kind of angle-style ultra-fine grain coalescence case Pending CN106731435A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109395517A (en) * 2018-11-27 2019-03-01 江苏乾云环保工程有限公司 Organic solvent steam fog demister
CN111871139A (en) * 2020-08-09 2020-11-03 盐城工学院 Rhombus superfine particle coalescence box
CN111871138A (en) * 2020-08-09 2020-11-03 盐城工学院 Fan-shaped superfine particle coalescence box
CN111871140A (en) * 2020-08-09 2020-11-03 盐城工学院 Oval superfine particle coalescence case

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919696A (en) * 1987-10-30 1990-04-24 Mitsubishi Jukogyo Kabushiki Kaisha Supercooling type mist eliminator apparatus
CN103007670A (en) * 2012-12-27 2013-04-03 厦门龙净环保技术有限公司 Electrostatic fabric filter for controlling fine particles PM2.5 and mercury collaborative removal
CN204380469U (en) * 2015-01-04 2015-06-10 中电投远达环保工程有限公司 Fume dust remover
CN104801420A (en) * 2015-05-13 2015-07-29 东南大学 Device and method for increasing grain size of PM2.5 (particulate matter2.5) through turbulent flow and chemical agglomeration coupling
CN205392083U (en) * 2016-03-23 2016-07-27 河北工业大学 Ultrafine particle's device in desorption coal fired boiler flue gas

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919696A (en) * 1987-10-30 1990-04-24 Mitsubishi Jukogyo Kabushiki Kaisha Supercooling type mist eliminator apparatus
CN103007670A (en) * 2012-12-27 2013-04-03 厦门龙净环保技术有限公司 Electrostatic fabric filter for controlling fine particles PM2.5 and mercury collaborative removal
CN204380469U (en) * 2015-01-04 2015-06-10 中电投远达环保工程有限公司 Fume dust remover
CN104801420A (en) * 2015-05-13 2015-07-29 东南大学 Device and method for increasing grain size of PM2.5 (particulate matter2.5) through turbulent flow and chemical agglomeration coupling
CN205392083U (en) * 2016-03-23 2016-07-27 河北工业大学 Ultrafine particle's device in desorption coal fired boiler flue gas

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109395517A (en) * 2018-11-27 2019-03-01 江苏乾云环保工程有限公司 Organic solvent steam fog demister
CN111871139A (en) * 2020-08-09 2020-11-03 盐城工学院 Rhombus superfine particle coalescence box
CN111871138A (en) * 2020-08-09 2020-11-03 盐城工学院 Fan-shaped superfine particle coalescence box
CN111871140A (en) * 2020-08-09 2020-11-03 盐城工学院 Oval superfine particle coalescence case

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